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Singh, Devendra
- Production Potential of [Glycine max (L.) Merrill] under Different Weed Management Practices
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Authors
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1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
Source
The Asian Journal of Horticulture, Vol 12, No 1 (2017), Pagination: 1-21Abstract
The results of experiment reveal that pre-emergence application of pendimethalin 0.75kg ha-1 + hand weeding 30 DAS resulted the lowest density of monocot (3.41m-2), dicot (3.15m-2) and total weeds (4.59m-2) 50DAS compared to weedy check (6.80, 6.01 and 9.05am-2), respectively. Integration of pre-emergence herbicides with hand weeding or their sequential use with post-emergence herbicides was found significantly superior in controlling the weed density 50DAS compared to their corresponding application alone. All the weed control treatments were also found significantly superior in reducing dry matter of monocot; dicot and total weeds compared to weedy check 75DAS. Minimum total weed dry matter 75DAS was observed under weed free (146kg ha-1) closely followed by pre-emergence application of pendimethalin 0.75kg ha-1 + hand weeding 30DAS (431.7kg ha-1) compared to weedy check (1884.5kg ha-1). Weed control efficiency 75DAS observed maximum under weed free treatment in which crop was kept weed free upto 50 days (92.18%) which is closely followed by pre-emergence application of pendimethalin 0.75kg ha-1 + hand weeding 30DAS (76.96%) and weed index was also recorded the lowest under pre-emergence application of pendimethalin 0.75kg ha-1 + hand weeding 30DAS (3.17%). Uptake of N and P by weeds at harvest was found significantly lower with all the weed control treatments compared to weedy check. The minimum uptake of N (2.78kg ha-1) and P (0.40kg ha-1) was recorded with weed free treatment closely followed by pre-emergence application of pendimethalin 0.75kg ha-1 + hand weeding 30DAS with the respective uptake values as 8.17 and 1.18kg ha-1. All the weed control treatments significantly tended to increase plant height, dry matter accumulation, branches plant-1 and leaf area of soybean over weedy check. Weed free treatment recorded the highest plant dry matter (32.20g plant-1) at harvest closely followed by pre-emergence application of pendimethalin 0.75kg ha-1 + hand weeding 30DAS (31.05g plant-1) and two hand weeding (30.65g plant-1). Weed free treatment recorded maximum number of branch plant-1, number of pods plant-1, pod length and seed index which was closely followed by pre-emergence application of pendimethalin 0.75kg ha-1 + hand weeding 30DAS and these treatments were found statistically at par to each other in this regard. Weed free upto 50 days treatment resulted in maximum seed yield (1421kg ha-1) which was statistically at par with pre-emergence application of pendimethalin 0.75kg ha-1 + hand weeding 30 DAS (1376kg ha-1) and two hand weeding 15 and 30DAS (1321kg ha-1). A like seed yield, haulm yield (3100kg ha-1), biological yield (4521kg ha-1) and harvest index (31.43%) were also recorded maximum under weed free treatment which were closely followed by pendimethalin 0.75kg ha-1 PE + hand weeding 30DAS. The maximum uptake of total nitrogen (143.78kg ha-1) and phosphorus (15.63kg ha-1) by the crop was significantly more in weed free check closely followed by pre-emergence application of pendimethalin 0.75kg ha-1 + hand weeding 30DAS and these treatments were found statistically at par to each other in this regard and the minimum being recorded under weedy check with the respective value of 52.32 and 5.64kg ha-1. Both net return (Rs.29508 ha-1) and benefit cost ratio (2.38) were also obtained maximum under pre-emergent pendimethalin 0.75kg ha-1 + hand weeding 30DAS closely followed by two hand weeding 15 and 30DAS with the respective net return and BC ratio of Rs. 27244 and 2.26.Keywords
CGR, RGR, LAI, NAR, DAS.References
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- Richards, L.A. (1968). Diagnosis and improvement of saline and alkaline soils. Hand Book No. 60, USDA, Washington, D.C., USA.
- Singh, P., Nepalia, V. and Tomar, S.S. (2006). Effect of weed control and nutrient management on soybean (Glycine max) productivity. Indian J. Agron., 51: 314-317.
- Singh P. and Kumar, R. (2008). Agro-economics feasibility of weed management in soybean grown in vertisols of southeastern Rajasthan. Indian J. Weed Sci., 40: 62-64.
- Vyas, M.D. and Kushwah, S.S. (2008). Effect of cultural and chemical methods on growth and yield of soybean in Vindhynagar plateau of Madhya Pradesh. Indian J. Weed Sci., 40: 92-94.
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- Triticum aestivum L. Varietal Accession Evaluation under Low Fertility and Two Irrigations
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Authors
Affiliations
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
Source
The Asian Journal of Horticulture, Vol 12, No 1 (2017), Pagination: 63-74Abstract
The experiment consisted of 9 treatments viz., T0 (DBW-17), T1 (Raj 3077), T2 (HD 2967), T3 (Lok-1), T4 (Raj 1482), T5 (Raj 4120), T6 (K-65) T7 (HD 2967), T8(PBW-343) laid out in Randomized Block Design with three replications. The study showed that Lok-1 variety gave highest grain yield (2.76t ha-1), harvest index (31.15%), highest net income (Rs. 110,000.7 ha-1) and benefit: cost (3.74) then the rest of the varieties. The plant height was found to be the highest under the treatment T3 (Lok-1) at 30, 60 and 90DAS the differences were statistically significant. Treatment T1 (Raj 3077) recorded significantly higher number of effective tillers per meter square than all the other treatments, while the lowest number of effective tillers per meter squarewas recorded for the treatment T3 (Lok-1). The spike length was recorded to be highest under the treatment T3 (Lok-1) which was significantly higher than all these other treatments, while the lowest spike length was recorded under the treatment T5 (Raj 4120). Number of grains spike-1 was recorded to be highest under the treatment T6 (K-65), while the lowest grains spike-1 was recorded under the treatment T0 (DBW-17). Treatment T2 (HD2967) recorded significantly higher test weight than all the other treatments, while the lowest test weight was recorded under the treatment T8 (PBW-343). The highest grain yield was recorded under the treatment T3 (Lok-1), while the lowest grain yield was recorded in treatment T0 (DBW-343) and the differences were statistically non-significant.Keywords
CGR, MOP, RGR, SSR, Harvest Index, NS.References
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- Study of Morphological and Molecular Characterization of Garlic (Allium sativum L.)
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Authors
Affiliations
1 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
1 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
Source
The Asian Journal of Horticulture, Vol 12, No 1 (2017), Pagination: 141-159Abstract
Genotypic and phenotypic co-efficients of variation were high for average weight of clove, yield per plant, cloves per bulb and plant height. Width of clove, plant height and length of leaves, yield per plant, cloves per bulb, average weight of clove exhibited high heritability coupled with high genetic advance as per cent of mean. These characters are governed by additive gene effects. It was also concluded that selection on the basis of these characters will be more useful for the improvement of this crop towards attaining higher yield. Correlation co-efficient studies showed that phenotypic correlation co-efficients are higher than genotypic correlation which indicates the inherent association among the characters dependent of environment influence. Yield per plant had a positive and highly significant correlation with plant height, length of leaves, average weight of clove, equatorial diameter, polar diameter and clove/bulb which implies that these characters were contributing to bulb weight and bulb yield/plant. All the combination of traits should be considered while selecting for high yielding genotypes. Improvement of bulb weight per plant may be achieved by exercising direct selection of plant height, length of leaves, weight of cloves, equatorial diameter of bulb, clove weight, number of cloves per bulb, polar diameter of bulb and clove length as these exhibited significant positive direct effect on bulb weight per plant coupled with high heritability and high genetic advance as per cent of mean. Characters had correlation co-efficient value at par with their direct effect on bulb yield per hectare. In Mahalanobis D2 analysis, On the basis of Mahalanobis D2 values, all the 27 genotypes were grouped under study were grouped into six clusters. Cluster III (8), cluster V (6) and cluster VI (6) contained maximum number of genotypes and cluster I (4) and cluster II (2) comprising minimum number of genotypes and cluster IV contained single genotype.Keywords
PCR, SSR, Cluster, EDB, Genotype, Phenotype.References
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- Response of Mustard to Potassium in Combination With Other Nutrients
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Authors
Affiliations
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
1 Department of Agriculture, Bhagwant University, Ajmer (Rajasthan), IN
2 Department of Agricultural Biotechnology, Bhagwant University, Ajmer (Rajasthan), IN
Source
The Asian Journal of Horticulture, Vol 12, No 2 (2017), Pagination: 169-184Abstract
Plant height and number of primary and secondary branches at different crop growth stages were not affected significantly due to different nutrient levels, however exhibited some improvement over control. Dry matter accumulation by individual plant increased with advancement in cropage till harvest. The highest dry matter accumulation were recorded at 100% NPK+S @ 40 kg/ha treatment. 100% NPK+FYM @ 2.5 t/ha (dry weight) and 100%NPK+ZnSO4 @ 25 kg/ha ranked second and third, respectively in dry matter accumulation after 100% NPK+S @ 40 kg/ha. Days taken to 50% flowering and 80% maturity remained unaffected by different nutrient application levels. 100% NPK+S @ 40 kg/ha recorded significantly higher number of total branches at harvest than remaining treatments. 100% NPK+Borax @ 0.2% (foliar) and 100% NPK+FYM @ 2.5 t/ha (dry weight) recorded next higher to values 100% NPK+S @ 40 kg/ha. Yield attributes viz. number of siliquae per plant, length of siliqua, 1000-seed weight and seed weight per plant were affected significantly due to different nutrient levels. 150% NPK recorded higher number of siliquae per plant, higher number of seeds per siliqua, length of siliqua, 1000-seed weight and seed weight per plant. 150% NPK recorded significantly higher values of seed, stover and biological yield per hectare than remaining treatments. This treatment was followed by 100% NPK+FYM @ 2.5 t/ha (dry weight). Harvest index did not differ significantly under different nutrient levels. The nutrients (N, P and K) concentration in seed and stover remained unaffected by different nutrient levels.The nutrients (N, P and K) uptake by seed, stover and crop was recorded maximum at 150% NPK. The protein content in seed was found non-significant under different nutrient levels. However, it was recorded maximum at 100% NP treatment. The protein yield was found maximum at 150% NPK. The oil content in seed was found non-significant under different nutrient levels. Oil yield in seed was recorded maximum at 150% NPK. The maximum net returns and gross return were recorded at 150% NPK. Highest return per rupee invested was recorded at 150% NPK which was followed by 50% NPK. However, the lowest return per rupee invested was recorded in control condition.Keywords
Borax, FYM, NPK, Plant Height, DAS.References
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